PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-00:12:30
G10     253.6          30.6               10.6 +/-    2.51      18.3 +/-    2.51  0.100 / 0.120
G13     50.1           26.8                6.7 +/-    2.97      12.6 +/-    2.97  0.100 / 0.170
G15     78.6           56.2               10.1 +/-    0.59      11.8 +/-    0.59  0.050 / 0.040
G16     293.2          15.2                5.4 +/-    1.72      13.3 +/-    1.72  0.040 / 0.030
G20     274.6          52.6               10.2 +/-    3.76      12.5 +/-    3.76  0.080 / 0.170
G21     338.0          62.0                9.5 +/-    0.62      10.6 +/-    0.62  0.120 / 0.200
G26     265.5          14.1                9.2 +/-    1.91      23.3 +/-    1.91  0.030 / 0.040
G29     164.0          45.3               10.8 +/-    1.15      14.4 +/-    1.15  0.040 / 0.040